1 |
=encoding utf8 |
2 |
|
3 |
=head1 NAME |
4 |
|
5 |
@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter |
6 |
|
7 |
=head1 SYNOPSIS |
8 |
|
9 |
# create a file grab_test in $HOME: |
10 |
|
11 |
sub on_sel_grab { |
12 |
warn "you selected ", $_[0]->selection; |
13 |
() |
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} |
15 |
|
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# start a @@RXVT_NAME@@ using it: |
17 |
|
18 |
@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test |
19 |
|
20 |
=head1 DESCRIPTION |
21 |
|
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Everytime a terminal object gets created, extension scripts specified via |
23 |
the C<perl> resource are loaded and associated with it. |
24 |
|
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Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
26 |
thus must be encoded as UTF-8. |
27 |
|
28 |
Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
29 |
scripts will be shared (but not enabled) for all terminals. |
30 |
|
31 |
=head1 PREPACKAGED EXTENSIONS |
32 |
|
33 |
This section describes the extensions delivered with this release. You can |
34 |
find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. |
35 |
|
36 |
You can activate them like this: |
37 |
|
38 |
@@RXVT_NAME@@ -pe <extensionname> |
39 |
|
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=over 4 |
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|
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=item selection (enabled by default) |
43 |
|
44 |
(More) intelligent selection. This extension tries to be more intelligent |
45 |
when the user extends selections (double-click and further clicks). Right |
46 |
now, it tries to select words, urls and complete shell-quoted |
47 |
arguments, which is very convenient, too, if your F<ls> supports |
48 |
C<--quoting-style=shell>. |
49 |
|
50 |
A double-click usually selects the word under the cursor, further clicks |
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will enlarge the selection. |
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|
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It also offers the following bindable keyboard command: |
54 |
|
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=over 4 |
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|
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=item rot13 |
58 |
|
59 |
Rot-13 the selection when activated. Used via keyboard trigger: |
60 |
|
61 |
URxvt.keysym.C-M-r: perl:selection:rot13 |
62 |
|
63 |
=back |
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|
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=item option-popup (enabled by default) |
66 |
|
67 |
Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at |
68 |
runtime. |
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|
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=item selection-popup (enabled by default) |
71 |
|
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Binds a popup menu to Ctrl-Button3 that lets you convert the selection |
73 |
text into various other formats/action (such as uri unescaping, perl |
74 |
evalution, web-browser starting etc.), depending on content. |
75 |
|
76 |
=item searchable-scrollback<hotkey> (enabled by default) |
77 |
|
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Adds regex search functionality to the scrollback buffer, triggered |
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by a hotkey (default: C<M-s>). While in search mode, normal terminal |
80 |
input/output is suspended and a regex is displayed at the bottom of the |
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screen. |
82 |
|
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Inputting characters appends them to the regex and continues incremental |
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search. C<BackSpace> removes a character from the regex, C<Up> and C<Down> |
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search upwards/downwards in the scrollback buffer, C<End> jumps to the |
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bottom. C<Escape> leaves search mode and returns to the point where search |
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was started, while C<Enter> or C<Return> stay at the current position and |
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additionally stores the first match in the current line into the primary |
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selection. |
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|
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=item digital-clock |
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|
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Displays a digital clock using the built-in overlay. |
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|
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=item mark-urls |
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|
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Uses per-line display filtering (C<on_line_update>) to underline urls and |
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make them clickable. When middle-clicked, the program specified in the |
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resource C<urlLauncher> (default C<x-www-browser>) will be started with |
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the URL as first argument. |
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|
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=item block-graphics-to-ascii |
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|
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A not very useful example of filtering all text output to the terminal, |
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by replacing all line-drawing characters (U+2500 .. U+259F) by a |
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similar-looking ascii character. |
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|
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=item example-refresh-hooks |
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|
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Displays a very simple digital clock in the upper right corner of the |
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window. Illustrates overwriting the refresh callbacks to create your own |
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overlays or changes. |
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|
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=back |
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|
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=head1 API DOCUMENTATION |
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|
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=head2 General API Considerations |
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|
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All objects (such as terminals, time watchers etc.) are typical |
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reference-to-hash objects. The hash can be used to store anything you |
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like. All members starting with an underscore (such as C<_ptr> or |
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C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or |
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modified). |
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|
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When objects are destroyed on the C++ side, the perl object hashes are |
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emptied, so its best to store related objects such as time watchers and |
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the like inside the terminal object so they get destroyed as soon as the |
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terminal is destroyed. |
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|
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Argument names also often indicate the type of a parameter. Here are some |
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hints on what they mean: |
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|
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=over 4 |
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|
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=item $text |
137 |
|
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Rxvt-unicodes special way of encoding text, where one "unicode" character |
139 |
always represents one screen cell. See L<ROW_t> for a discussion of this format. |
140 |
|
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=item $string |
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|
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A perl text string, with an emphasis on I<text>. It can store all unicode |
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characters and is to be distinguished with text encoded in a specific |
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encoding (often locale-specific) and binary data. |
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|
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=item $octets |
148 |
|
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Either binary data or - more common - a text string encoded in a |
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locale-specific way. |
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|
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=back |
153 |
|
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=head2 Extension Objects |
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|
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Very perl extension is a perl class. A separate perl object is created |
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for each terminal and each extension and passed as the first parameter to |
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hooks. So extensions can use their C<$self> object without having to think |
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about other extensions, with the exception of methods and members that |
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begin with an underscore character C<_>: these are reserved for internal |
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use. |
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|
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Although it isn't a C<urxvt::term> object, you can call all methods of the |
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C<urxvt::term> class on this object. |
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|
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It has the following methods and data members: |
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|
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=over 4 |
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|
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=item $urxvt_term = $self->{term} |
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|
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Returns the C<urxvt::term> object associated with this instance of the |
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extension. This member I<must not> be changed in any way. |
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|
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=item $self->enable ($hook_name => $cb, [$hook_name => $cb..]) |
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|
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Dynamically enable the given hooks (named without the C<on_> prefix) for |
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this extension, replacing any previous hook. This is useful when you want |
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to overwrite time-critical hooks only temporarily. |
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|
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=item $self->disable ($hook_name[, $hook_name..]) |
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|
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Dynamically disable the given hooks. |
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|
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=back |
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|
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=head2 Hooks |
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|
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The following subroutines can be declared in extension files, and will be |
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called whenever the relevant event happens. |
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|
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The first argument passed to them is an extension oject as described in |
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the in the C<Extension Objects> section. |
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|
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B<All> of these hooks must return a boolean value. If it is true, then the |
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event counts as being I<consumed>, and the invocation of other hooks is |
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skipped, and the relevant action might not be carried out by the C++ code. |
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|
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I<< When in doubt, return a false value (preferably C<()>). >> |
200 |
|
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=over 4 |
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|
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=item on_init $term |
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|
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Called after a new terminal object has been initialized, but before |
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windows are created or the command gets run. Most methods are unsafe to |
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call or deliver senseless data, as terminal size and other characteristics |
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have not yet been determined. You can safely query and change resources, |
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though. |
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|
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=item on_reset $term |
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|
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Called after the screen is "reset" for any reason, such as resizing or |
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control sequences. Here is where you can react on changes to size-related |
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variables. |
216 |
|
217 |
=item on_start $term |
218 |
|
219 |
Called at the very end of initialisation of a new terminal, just before |
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returning to the mainloop. |
221 |
|
222 |
=item on_sel_make $term, $eventtime |
223 |
|
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Called whenever a selection has been made by the user, but before the |
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selection text is copied, so changes to the beginning, end or type of the |
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selection will be honored. |
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|
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Returning a true value aborts selection making by urxvt, in which case you |
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have to make a selection yourself by calling C<< $term->selection_grab >>. |
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|
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=item on_sel_grab $term, $eventtime |
232 |
|
233 |
Called whenever a selection has been copied, but before the selection is |
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requested from the server. The selection text can be queried and changed |
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by calling C<< $term->selection >>. |
236 |
|
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Returning a true value aborts selection grabbing. It will still be hilighted. |
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|
239 |
=item on_sel_extend $term |
240 |
|
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Called whenever the user tries to extend the selection (e.g. with a double |
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click) and is either supposed to return false (normal operation), or |
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should extend the selection itelf and return true to suppress the built-in |
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processing. This can happen multiple times, as long as the callback |
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returns true, it will be called on every further click by the user and is |
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supposed to enlarge the selection more and more, if possible. |
247 |
|
248 |
See the F<selection> example extension. |
249 |
|
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=item on_view_change $term, $offset |
251 |
|
252 |
Called whenever the view offset changes, i..e the user or program |
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scrolls. Offset C<0> means display the normal terminal, positive values |
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show this many lines of scrollback. |
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|
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=item on_scroll_back $term, $lines, $saved |
257 |
|
258 |
Called whenever lines scroll out of the terminal area into the scrollback |
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buffer. C<$lines> is the number of lines scrolled out and may be larger |
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than the scroll back buffer or the terminal. |
261 |
|
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It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, |
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$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total |
264 |
number of lines that will be in the scrollback buffer. |
265 |
|
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=item on_osc_seq $term, $string |
267 |
|
268 |
Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = |
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operating system command) is processed. Cursor position and other state |
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information is up-to-date when this happens. For interoperability, the |
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string should start with the extension name and a colon, to distinguish |
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it from commands for other extensions, and this might be enforced in the |
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future. |
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|
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Be careful not ever to trust (in a security sense) the data you receive, |
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as its source can not easily be controleld (e-mail content, messages from |
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other users on the same system etc.). |
278 |
|
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=item on_add_lines $term, $string |
280 |
|
281 |
Called whenever text is about to be output, with the text as argument. You |
282 |
can filter/change and output the text yourself by returning a true value |
283 |
and calling C<< $term->scr_add_lines >> yourself. Please note that this |
284 |
might be very slow, however, as your hook is called for B<all> text being |
285 |
output. |
286 |
|
287 |
=item on_tt_write $term, $octets |
288 |
|
289 |
Called whenever some data is written to the tty/pty and can be used to |
290 |
suppress or filter tty input. |
291 |
|
292 |
=item on_line_update $term, $row |
293 |
|
294 |
Called whenever a line was updated or changed. Can be used to filter |
295 |
screen output (e.g. underline urls or other useless stuff). Only lines |
296 |
that are being shown will be filtered, and, due to performance reasons, |
297 |
not always immediately. |
298 |
|
299 |
The row number is always the topmost row of the line if the line spans |
300 |
multiple rows. |
301 |
|
302 |
Please note that, if you change the line, then the hook might get called |
303 |
later with the already-modified line (e.g. if unrelated parts change), so |
304 |
you cannot just toggle rendition bits, but only set them. |
305 |
|
306 |
=item on_refresh_begin $term |
307 |
|
308 |
Called just before the screen gets redrawn. Can be used for overlay |
309 |
or similar effects by modify terminal contents in refresh_begin, and |
310 |
restoring them in refresh_end. The built-in overlay and selection display |
311 |
code is run after this hook, and takes precedence. |
312 |
|
313 |
=item on_refresh_end $term |
314 |
|
315 |
Called just after the screen gets redrawn. See C<on_refresh_begin>. |
316 |
|
317 |
=item on_keyboard_command $term, $string |
318 |
|
319 |
Called whenever the user presses a key combination that has a |
320 |
C<perl:string> action bound to it (see description of the B<keysym> |
321 |
resource in the @@RXVT_NAME@@(1) manpage). |
322 |
|
323 |
=item on_focus_in $term |
324 |
|
325 |
Called whenever the window gets the keyboard focus, before rxvt-unicode |
326 |
does focus in processing. |
327 |
|
328 |
=item on_focus_out $term |
329 |
|
330 |
Called wheneever the window loses keyboard focus, before rxvt-unicode does |
331 |
focus out processing. |
332 |
|
333 |
=item on_key_press $term, $event, $keysym, $octets |
334 |
|
335 |
=item on_key_release $term, $event, $keysym |
336 |
|
337 |
=item on_button_press $term, $event |
338 |
|
339 |
=item on_button_release $term, $event |
340 |
|
341 |
=item on_motion_notify $term, $event |
342 |
|
343 |
=item on_map_notify $term, $event |
344 |
|
345 |
=item on_unmap_notify $term, $event |
346 |
|
347 |
Called whenever the corresponding X event is received for the terminal If |
348 |
the hook returns true, then the even will be ignored by rxvt-unicode. |
349 |
|
350 |
The event is a hash with most values as named by Xlib (see the XEvent |
351 |
manpage), with the additional members C<row> and C<col>, which are the row |
352 |
and column under the mouse cursor. |
353 |
|
354 |
C<on_key_press> additionally receives the string rxvt-unicode would |
355 |
output, if any, in locale-specific encoding. |
356 |
|
357 |
subwindow. |
358 |
|
359 |
=back |
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|
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=cut |
362 |
|
363 |
package urxvt; |
364 |
|
365 |
use utf8; |
366 |
use strict; |
367 |
use Carp (); |
368 |
use Scalar::Util (); |
369 |
use List::Util (); |
370 |
|
371 |
our $VERSION = 1; |
372 |
our $TERM; |
373 |
our @HOOKNAME; |
374 |
our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; |
375 |
our %OPTION; |
376 |
|
377 |
our $LIBDIR; |
378 |
our $RESNAME; |
379 |
our $RESCLASS; |
380 |
our $RXVTNAME; |
381 |
|
382 |
=head2 Variables in the C<urxvt> Package |
383 |
|
384 |
=over 4 |
385 |
|
386 |
=item $urxvt::LIBDIR |
387 |
|
388 |
The rxvt-unicode library directory, where, among other things, the perl |
389 |
modules and scripts are stored. |
390 |
|
391 |
=item $urxvt::RESCLASS, $urxvt::RESCLASS |
392 |
|
393 |
The resource class and name rxvt-unicode uses to look up X resources. |
394 |
|
395 |
=item $urxvt::RXVTNAME |
396 |
|
397 |
The basename of the installed binaries, usually C<urxvt>. |
398 |
|
399 |
=item $urxvt::TERM |
400 |
|
401 |
The current terminal. This variable stores the current C<urxvt::term> |
402 |
object, whenever a callback/hook is executing. |
403 |
|
404 |
=back |
405 |
|
406 |
=head2 Functions in the C<urxvt> Package |
407 |
|
408 |
=over 4 |
409 |
|
410 |
=item urxvt::fatal $errormessage |
411 |
|
412 |
Fatally aborts execution with the given error message. Avoid at all |
413 |
costs! The only time this is acceptable is when the terminal process |
414 |
starts up. |
415 |
|
416 |
=item urxvt::warn $string |
417 |
|
418 |
Calls C<rxvt_warn> with the given string which should not include a |
419 |
newline. The module also overwrites the C<warn> builtin with a function |
420 |
that calls this function. |
421 |
|
422 |
Using this function has the advantage that its output ends up in the |
423 |
correct place, e.g. on stderr of the connecting urxvtc client. |
424 |
|
425 |
Messages have a size limit of 1023 bytes currently. |
426 |
|
427 |
=item $is_safe = urxvt::safe |
428 |
|
429 |
Returns true when it is safe to do potentially unsafe things, such as |
430 |
evaluating perl code specified by the user. This is true when urxvt was |
431 |
started setuid or setgid. |
432 |
|
433 |
=item $time = urxvt::NOW |
434 |
|
435 |
Returns the "current time" (as per the event loop). |
436 |
|
437 |
=item urxvt::CurrentTime |
438 |
|
439 |
=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, |
440 |
Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, |
441 |
Button4Mask, Button5Mask, AnyModifier |
442 |
|
443 |
Various constants for use in X calls and event processing. |
444 |
|
445 |
=back |
446 |
|
447 |
=head2 RENDITION |
448 |
|
449 |
Rendition bitsets contain information about colour, font, font styles and |
450 |
similar information for each screen cell. |
451 |
|
452 |
The following "macros" deal with changes in rendition sets. You should |
453 |
never just create a bitset, you should always modify an existing one, |
454 |
as they contain important information required for correct operation of |
455 |
rxvt-unicode. |
456 |
|
457 |
=over 4 |
458 |
|
459 |
=item $rend = urxvt::DEFAULT_RSTYLE |
460 |
|
461 |
Returns the default rendition, as used when the terminal is starting up or |
462 |
being reset. Useful as a base to start when creating renditions. |
463 |
|
464 |
=item $rend = urxvt::OVERLAY_RSTYLE |
465 |
|
466 |
Return the rendition mask used for overlays by default. |
467 |
|
468 |
=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline |
469 |
|
470 |
Return the bit that enabled bold, italic, blink, reverse-video and |
471 |
underline, respectively. To enable such a style, just logically OR it into |
472 |
the bitset. |
473 |
|
474 |
=item $foreground = urxvt::GET_BASEFG $rend |
475 |
|
476 |
=item $background = urxvt::GET_BASEBG $rend |
477 |
|
478 |
Return the foreground/background colour index, respectively. |
479 |
|
480 |
=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour |
481 |
|
482 |
=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour |
483 |
|
484 |
Replace the foreground/background colour in the rendition mask with the |
485 |
specified one. |
486 |
|
487 |
=item $value = urxvt::GET_CUSTOM $rend |
488 |
|
489 |
Return the "custom" value: Every rendition has 5 bits for use by |
490 |
extensions. They can be set and changed as you like and are initially |
491 |
zero. |
492 |
|
493 |
=item $rend = urxvt::SET_CUSTOM $rend, $new_value |
494 |
|
495 |
Change the custom value. |
496 |
|
497 |
=back |
498 |
|
499 |
=cut |
500 |
|
501 |
BEGIN { |
502 |
urxvt->bootstrap; |
503 |
|
504 |
# overwrite perl's warn |
505 |
*CORE::GLOBAL::warn = sub { |
506 |
my $msg = join "", @_; |
507 |
$msg .= "\n" |
508 |
unless $msg =~ /\n$/; |
509 |
urxvt::warn ($msg); |
510 |
}; |
511 |
|
512 |
# %ENV is the original startup environment |
513 |
delete $ENV{IFS}; |
514 |
delete $ENV{CDPATH}; |
515 |
delete $ENV{BASH_ENV}; |
516 |
$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin"; |
517 |
} |
518 |
|
519 |
my @hook_count; |
520 |
my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; |
521 |
|
522 |
sub verbose { |
523 |
my ($level, $msg) = @_; |
524 |
warn "$msg\n" if $level <= $verbosity; |
525 |
} |
526 |
|
527 |
my $extension_pkg = "extension0000"; |
528 |
my %extension_pkg; |
529 |
|
530 |
# load a single script into its own package, once only |
531 |
sub extension_package($) { |
532 |
my ($path) = @_; |
533 |
|
534 |
$extension_pkg{$path} ||= do { |
535 |
my $pkg = "urxvt::" . ($extension_pkg++); |
536 |
|
537 |
verbose 3, "loading extension '$path' into package '$pkg'"; |
538 |
|
539 |
open my $fh, "<:raw", $path |
540 |
or die "$path: $!"; |
541 |
|
542 |
my $source = untaint |
543 |
"package $pkg; use strict; use utf8;\n" |
544 |
. "use base urxvt::term::extension::;\n" |
545 |
. "#line 1 \"$path\"\n{\n" |
546 |
. (do { local $/; <$fh> }) |
547 |
. "\n};\n1"; |
548 |
|
549 |
eval $source |
550 |
or die "$path: $@"; |
551 |
|
552 |
$pkg |
553 |
} |
554 |
} |
555 |
|
556 |
our $retval; # return value for urxvt |
557 |
|
558 |
# called by the rxvt core |
559 |
sub invoke { |
560 |
local $TERM = shift; |
561 |
my $htype = shift; |
562 |
|
563 |
if ($htype == 0) { # INIT |
564 |
my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); |
565 |
|
566 |
my %ext_arg; |
567 |
|
568 |
for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { |
569 |
if ($_ eq "default") { |
570 |
$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); |
571 |
} elsif (/^-(.*)$/) { |
572 |
delete $ext_arg{$1}; |
573 |
} elsif (/^([^<]+)<(.*)>$/) { |
574 |
push @{ $ext_arg{$1} }, $2; |
575 |
} else { |
576 |
$ext_arg{$_} ||= []; |
577 |
} |
578 |
} |
579 |
|
580 |
while (my ($ext, $argv) = each %ext_arg) { |
581 |
my @files = grep -f $_, map "$_/$ext", @dirs; |
582 |
|
583 |
if (@files) { |
584 |
$TERM->register_package (extension_package $files[0], $argv); |
585 |
} else { |
586 |
warn "perl extension '$ext' not found in perl library search path\n"; |
587 |
} |
588 |
} |
589 |
|
590 |
eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval"); |
591 |
warn $@ if $@; |
592 |
} |
593 |
|
594 |
$retval = undef; |
595 |
|
596 |
if (my $cb = $TERM->{_hook}[$htype]) { |
597 |
verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" |
598 |
if $verbosity >= 10; |
599 |
|
600 |
keys %$cb; |
601 |
|
602 |
while (my ($pkg, $cb) = each %$cb) { |
603 |
$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } |
604 |
and last; |
605 |
|
606 |
if ($@) { |
607 |
$TERM->ungrab; # better to lose the grab than the session |
608 |
warn $@; |
609 |
} |
610 |
} |
611 |
|
612 |
verbose 11, "$HOOKNAME[$htype] returning <$retval>" |
613 |
if $verbosity >= 11; |
614 |
} |
615 |
|
616 |
if ($htype == 1) { # DESTROY |
617 |
if (my $hook = delete $TERM->{_hook}) { |
618 |
for my $htype (0..$#$hook) { |
619 |
$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } |
620 |
or set_should_invoke $htype, 0; |
621 |
} |
622 |
} |
623 |
|
624 |
# clear package objects |
625 |
%$_ = () for values %{ $TERM->{_pkg} }; |
626 |
|
627 |
# clear package |
628 |
%$TERM = (); |
629 |
} |
630 |
|
631 |
$retval |
632 |
} |
633 |
|
634 |
sub exec_async(@) { |
635 |
my $pid = fork; |
636 |
|
637 |
return |
638 |
if !defined $pid or $pid; |
639 |
|
640 |
%ENV = %{ $TERM->env }; |
641 |
|
642 |
exec @_; |
643 |
_exit 255; |
644 |
} |
645 |
|
646 |
# urxvt::term::extension |
647 |
|
648 |
package urxvt::term::extension; |
649 |
|
650 |
sub enable { |
651 |
my ($self, %hook) = @_; |
652 |
my $pkg = $self->{_pkg}; |
653 |
|
654 |
while (my ($name, $cb) = each %hook) { |
655 |
my $htype = $HOOKTYPE{uc $name}; |
656 |
defined $htype |
657 |
or Carp::croak "unsupported hook type '$name'"; |
658 |
|
659 |
unless (exists $self->{term}{_hook}[$htype]{$pkg}) { |
660 |
$hook_count[$htype]++ |
661 |
or urxvt::set_should_invoke $htype, 1; |
662 |
} |
663 |
|
664 |
$self->{term}{_hook}[$htype]{$pkg} = $cb; |
665 |
} |
666 |
} |
667 |
|
668 |
sub disable { |
669 |
my ($self, @hook) = @_; |
670 |
my $pkg = $self->{_pkg}; |
671 |
|
672 |
for my $name (@hook) { |
673 |
my $htype = $HOOKTYPE{uc $name}; |
674 |
defined $htype |
675 |
or Carp::croak "unsupported hook type '$name'"; |
676 |
|
677 |
if (delete $self->{term}{_hook}[$htype]{$pkg}) { |
678 |
--$hook_count[$htype] |
679 |
or urxvt::set_should_invoke $htype, 0; |
680 |
} |
681 |
} |
682 |
} |
683 |
|
684 |
our $AUTOLOAD; |
685 |
|
686 |
sub AUTOLOAD { |
687 |
$AUTOLOAD =~ /:([^:]+)$/ |
688 |
or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable"; |
689 |
|
690 |
eval qq{ |
691 |
sub $AUTOLOAD { |
692 |
my \$proxy = shift; |
693 |
\$proxy->{term}->$1 (\@_) |
694 |
} |
695 |
1 |
696 |
} or die "FATAL: unable to compile method forwarder: $@"; |
697 |
|
698 |
goto &$AUTOLOAD; |
699 |
} |
700 |
|
701 |
sub DESTROY { |
702 |
# nop |
703 |
} |
704 |
|
705 |
# urxvt::destroy_hook |
706 |
|
707 |
sub urxvt::destroy_hook::DESTROY { |
708 |
${$_[0]}->(); |
709 |
} |
710 |
|
711 |
sub urxvt::destroy_hook(&) { |
712 |
bless \shift, urxvt::destroy_hook:: |
713 |
} |
714 |
|
715 |
package urxvt::anyevent; |
716 |
|
717 |
=head2 The C<urxvt::anyevent> Class |
718 |
|
719 |
The sole purpose of this class is to deliver an interface to the |
720 |
C<AnyEvent> module - any module using it will work inside urxvt without |
721 |
further programming. The only exception is that you cannot wait on |
722 |
condition variables, but non-blocking condvar use is ok. What this means |
723 |
is that you cannot use blocking APIs, but the non-blocking variant should |
724 |
work. |
725 |
|
726 |
=cut |
727 |
|
728 |
our $VERSION = 1; |
729 |
|
730 |
$INC{"urxvt/anyevent.pm"} = 1; # mark us as there |
731 |
push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::]; |
732 |
|
733 |
sub timer { |
734 |
my ($class, %arg) = @_; |
735 |
|
736 |
my $cb = $arg{cb}; |
737 |
|
738 |
urxvt::timer |
739 |
->new |
740 |
->start (urxvt::NOW + $arg{after}) |
741 |
->cb (sub { |
742 |
$_[0]->stop; # need to cancel manually |
743 |
$cb->(); |
744 |
}) |
745 |
} |
746 |
|
747 |
sub io { |
748 |
my ($class, %arg) = @_; |
749 |
|
750 |
my $cb = $arg{cb}; |
751 |
|
752 |
bless [$arg{fh}, urxvt::iow |
753 |
->new |
754 |
->fd (fileno $arg{fh}) |
755 |
->events (($arg{poll} =~ /r/ ? 1 : 0) |
756 |
| ($arg{poll} =~ /w/ ? 2 : 0)) |
757 |
->start |
758 |
->cb (sub { |
759 |
$cb->(($_[1] & 1 ? 'r' : '') |
760 |
. ($_[1] & 2 ? 'w' : '')); |
761 |
})], |
762 |
urxvt::anyevent:: |
763 |
} |
764 |
|
765 |
sub DESTROY { |
766 |
$_[0][1]->stop; |
767 |
} |
768 |
|
769 |
sub condvar { |
770 |
bless \my $flag, urxvt::anyevent::condvar:: |
771 |
} |
772 |
|
773 |
sub urxvt::anyevent::condvar::broadcast { |
774 |
${$_[0]}++; |
775 |
} |
776 |
|
777 |
sub urxvt::anyevent::condvar::wait { |
778 |
unless (${$_[0]}) { |
779 |
Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"; |
780 |
} |
781 |
} |
782 |
|
783 |
package urxvt::term; |
784 |
|
785 |
=head2 The C<urxvt::term> Class |
786 |
|
787 |
=over 4 |
788 |
|
789 |
=cut |
790 |
|
791 |
# find on_xxx subs in the package and register them |
792 |
# as hooks |
793 |
sub register_package { |
794 |
my ($self, $pkg, $argv) = @_; |
795 |
|
796 |
my $proxy = bless { |
797 |
_pkg => $pkg, |
798 |
argv => $argv, |
799 |
}, $pkg; |
800 |
Scalar::Util::weaken ($proxy->{term} = $self); |
801 |
|
802 |
$self->{_pkg}{$pkg} = $proxy; |
803 |
|
804 |
for my $name (@HOOKNAME) { |
805 |
if (my $ref = $pkg->can ("on_" . lc $name)) { |
806 |
$proxy->enable ($name => $ref); |
807 |
} |
808 |
} |
809 |
} |
810 |
|
811 |
=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] |
812 |
|
813 |
Creates a new terminal, very similar as if you had started it with system |
814 |
C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like |
815 |
hash which defines the environment of the new terminal. |
816 |
|
817 |
Croaks (and probably outputs an error message) if the new instance |
818 |
couldn't be created. Returns C<undef> if the new instance didn't |
819 |
initialise perl, and the terminal object otherwise. The C<init> and |
820 |
C<start> hooks will be called during this call. |
821 |
|
822 |
=cut |
823 |
|
824 |
sub new { |
825 |
my ($class, $env, @args) = @_; |
826 |
|
827 |
_new ([ map "$_=$env->{$_}", keys %$env ], @args); |
828 |
} |
829 |
|
830 |
=item $term->destroy |
831 |
|
832 |
Destroy the terminal object (close the window, free resources |
833 |
etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event |
834 |
watchers (timers, io watchers) are still active. |
835 |
|
836 |
=item $isset = $term->option ($optval[, $set]) |
837 |
|
838 |
Returns true if the option specified by C<$optval> is enabled, and |
839 |
optionally change it. All option values are stored by name in the hash |
840 |
C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. |
841 |
|
842 |
Here is a a likely non-exhaustive list of option names, please see the |
843 |
source file F</src/optinc.h> to see the actual list: |
844 |
|
845 |
borderLess console cursorBlink cursorUnderline hold iconic insecure |
846 |
intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage |
847 |
pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating |
848 |
scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer |
849 |
secondaryScreen secondaryScroll skipBuiltinGlyphs transparent |
850 |
tripleclickwords utmpInhibit visualBell |
851 |
|
852 |
=item $value = $term->resource ($name[, $newval]) |
853 |
|
854 |
Returns the current resource value associated with a given name and |
855 |
optionally sets a new value. Setting values is most useful in the C<init> |
856 |
hook. Unset resources are returned and accepted as C<undef>. |
857 |
|
858 |
The new value must be properly encoded to a suitable character encoding |
859 |
before passing it to this method. Similarly, the returned value may need |
860 |
to be converted from the used encoding to text. |
861 |
|
862 |
Resource names are as defined in F<src/rsinc.h>. Colours can be specified |
863 |
as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will |
864 |
likely change). |
865 |
|
866 |
Please note that resource strings will currently only be freed when the |
867 |
terminal is destroyed, so changing options frequently will eat memory. |
868 |
|
869 |
Here is a a likely non-exhaustive list of resource names, not all of which |
870 |
are supported in every build, please see the source file F</src/rsinc.h> |
871 |
to see the actual list: |
872 |
|
873 |
answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
874 |
borderLess color cursorBlink cursorUnderline cutchars delete_key |
875 |
display_name embed ext_bwidth fade font geometry hold iconName |
876 |
imFont imLocale inputMethod insecure int_bwidth intensityStyles |
877 |
italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier |
878 |
mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 |
879 |
perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd |
880 |
reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating |
881 |
scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput |
882 |
scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle |
883 |
shade term_name title transparent transparent_all tripleclickwords |
884 |
utmpInhibit visualBell |
885 |
|
886 |
=cut |
887 |
|
888 |
sub resource($$;$) { |
889 |
my ($self, $name) = (shift, shift); |
890 |
unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); |
891 |
&urxvt::term::_resource |
892 |
} |
893 |
|
894 |
=item $value = $term->x_resource ($pattern) |
895 |
|
896 |
Returns the X-Resource for the given pattern, excluding the program or |
897 |
class name, i.e. C<< $term->x_resource ("boldFont") >> should return the |
898 |
same value as used by this instance of rxvt-unicode. Returns C<undef> if no |
899 |
resource with that pattern exists. |
900 |
|
901 |
This method should only be called during the C<on_start> hook, as there is |
902 |
only one resource database per display, and later invocations might return |
903 |
the wrong resources. |
904 |
|
905 |
=item $success = $term->parse_keysym ($keysym_spec, $command_string) |
906 |
|
907 |
Adds a keymap translation exactly as specified via a resource. See the |
908 |
C<keysym> resource in the @@RXVT_NAME@@(1) manpage. |
909 |
|
910 |
=item $rend = $term->rstyle ([$new_rstyle]) |
911 |
|
912 |
Return and optionally change the current rendition. Text that is output by |
913 |
the terminal application will use this style. |
914 |
|
915 |
=item ($row, $col) = $term->screen_cur ([$row, $col]) |
916 |
|
917 |
Return the current coordinates of the text cursor position and optionally |
918 |
set it (which is usually bad as applications don't expect that). |
919 |
|
920 |
=item ($row, $col) = $term->selection_mark ([$row, $col]) |
921 |
|
922 |
=item ($row, $col) = $term->selection_beg ([$row, $col]) |
923 |
|
924 |
=item ($row, $col) = $term->selection_end ([$row, $col]) |
925 |
|
926 |
Return the current values of the selection mark, begin or end positions, |
927 |
and optionally set them to new values. |
928 |
|
929 |
=item $term->selection_make ($eventtime[, $rectangular]) |
930 |
|
931 |
Tries to make a selection as set by C<selection_beg> and |
932 |
C<selection_end>. If C<$rectangular> is true (default: false), a |
933 |
rectangular selection will be made. This is the prefered function to make |
934 |
a selection. |
935 |
|
936 |
=item $success = $term->selection_grab ($eventtime) |
937 |
|
938 |
Try to request the primary selection text from the server (for example, as |
939 |
set by the next method). No visual feedback will be given. This function |
940 |
is mostly useful from within C<on_sel_grab> hooks. |
941 |
|
942 |
=item $oldtext = $term->selection ([$newtext]) |
943 |
|
944 |
Return the current selection text and optionally replace it by C<$newtext>. |
945 |
|
946 |
=item $term->overlay_simple ($x, $y, $text) |
947 |
|
948 |
Create a simple multi-line overlay box. See the next method for details. |
949 |
|
950 |
=cut |
951 |
|
952 |
sub overlay_simple { |
953 |
my ($self, $x, $y, $text) = @_; |
954 |
|
955 |
my @lines = split /\n/, $text; |
956 |
|
957 |
my $w = List::Util::max map $self->strwidth ($_), @lines; |
958 |
|
959 |
my $overlay = $self->overlay ($x, $y, $w, scalar @lines); |
960 |
$overlay->set (0, $_, $lines[$_]) for 0.. $#lines; |
961 |
|
962 |
$overlay |
963 |
} |
964 |
|
965 |
=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) |
966 |
|
967 |
Create a new (empty) overlay at the given position with the given |
968 |
width/height. C<$rstyle> defines the initial rendition style |
969 |
(default: C<OVERLAY_RSTYLE>). |
970 |
|
971 |
If C<$border> is C<2> (default), then a decorative border will be put |
972 |
around the box. |
973 |
|
974 |
If either C<$x> or C<$y> is negative, then this is counted from the |
975 |
right/bottom side, respectively. |
976 |
|
977 |
This method returns an urxvt::overlay object. The overlay will be visible |
978 |
as long as the perl object is referenced. |
979 |
|
980 |
The methods currently supported on C<urxvt::overlay> objects are: |
981 |
|
982 |
=over 4 |
983 |
|
984 |
=item $overlay->set ($x, $y, $text, $rend) |
985 |
|
986 |
Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts |
987 |
text in rxvt-unicode's special encoding and an array of rendition values |
988 |
at a specific position inside the overlay. |
989 |
|
990 |
=item $overlay->hide |
991 |
|
992 |
If visible, hide the overlay, but do not destroy it. |
993 |
|
994 |
=item $overlay->show |
995 |
|
996 |
If hidden, display the overlay again. |
997 |
|
998 |
=back |
999 |
|
1000 |
=item $popup = $term->popup ($event) |
1001 |
|
1002 |
Creates a new C<urxvt::popup> object that implements a popup menu. The |
1003 |
C<$event> I<must> be the event causing the menu to pop up (a button event, |
1004 |
currently). |
1005 |
|
1006 |
=cut |
1007 |
|
1008 |
sub popup { |
1009 |
my ($self, $event) = @_; |
1010 |
|
1011 |
$self->grab ($event->{time}, 1) |
1012 |
or return; |
1013 |
|
1014 |
my $popup = bless { |
1015 |
term => $self, |
1016 |
event => $event, |
1017 |
}, urxvt::popup::; |
1018 |
|
1019 |
Scalar::Util::weaken $popup->{term}; |
1020 |
|
1021 |
$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy }; |
1022 |
Scalar::Util::weaken $self->{_destroy}{$popup}; |
1023 |
|
1024 |
$popup |
1025 |
} |
1026 |
|
1027 |
=item $cellwidth = $term->strwidth ($string) |
1028 |
|
1029 |
Returns the number of screen-cells this string would need. Correctly |
1030 |
accounts for wide and combining characters. |
1031 |
|
1032 |
=item $octets = $term->locale_encode ($string) |
1033 |
|
1034 |
Convert the given text string into the corresponding locale encoding. |
1035 |
|
1036 |
=item $string = $term->locale_decode ($octets) |
1037 |
|
1038 |
Convert the given locale-encoded octets into a perl string. |
1039 |
|
1040 |
=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) |
1041 |
|
1042 |
XORs the rendition values in the given span with the provided value |
1043 |
(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in |
1044 |
refresh hooks to provide effects similar to the selection. |
1045 |
|
1046 |
=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) |
1047 |
|
1048 |
Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing |
1049 |
whitespace will additionally be xored with the C<$rstyle2>, which defaults |
1050 |
to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines |
1051 |
it instead. Both styles I<MUST NOT> contain font styles. |
1052 |
|
1053 |
=item $term->scr_bell |
1054 |
|
1055 |
Ring the bell! |
1056 |
|
1057 |
=item $term->scr_add_lines ($string) |
1058 |
|
1059 |
Write the given text string to the screen, as if output by the application |
1060 |
running inside the terminal. It may not contain command sequences (escape |
1061 |
codes), but is free to use line feeds, carriage returns and tabs. The |
1062 |
string is a normal text string, not in locale-dependent encoding. |
1063 |
|
1064 |
Normally its not a good idea to use this function, as programs might be |
1065 |
confused by changes in cursor position or scrolling. Its useful inside a |
1066 |
C<on_add_lines> hook, though. |
1067 |
|
1068 |
=item $term->cmd_parse ($octets) |
1069 |
|
1070 |
Similar to C<scr_add_lines>, but the argument must be in the |
1071 |
locale-specific encoding of the terminal and can contain command sequences |
1072 |
(escape codes) that will be interpreted. |
1073 |
|
1074 |
=item $term->tt_write ($octets) |
1075 |
|
1076 |
Write the octets given in C<$data> to the tty (i.e. as program input). To |
1077 |
pass characters instead of octets, you should convert your strings first |
1078 |
to the locale-specific encoding using C<< $term->locale_encode >>. |
1079 |
|
1080 |
=item $old_events = $term->pty_ev_events ([$new_events]) |
1081 |
|
1082 |
Replaces the event mask of the pty watcher by the given event mask. Can |
1083 |
be used to suppress input and output handling to the pty/tty. See the |
1084 |
description of C<< urxvt::timer->events >>. Make sure to always restore |
1085 |
the previous value. |
1086 |
|
1087 |
=item $windowid = $term->parent |
1088 |
|
1089 |
Return the window id of the toplevel window. |
1090 |
|
1091 |
=item $windowid = $term->vt |
1092 |
|
1093 |
Return the window id of the terminal window. |
1094 |
|
1095 |
=item $window_width = $term->width |
1096 |
|
1097 |
=item $window_height = $term->height |
1098 |
|
1099 |
=item $font_width = $term->fwidth |
1100 |
|
1101 |
=item $font_height = $term->fheight |
1102 |
|
1103 |
=item $font_ascent = $term->fbase |
1104 |
|
1105 |
=item $terminal_rows = $term->nrow |
1106 |
|
1107 |
=item $terminal_columns = $term->ncol |
1108 |
|
1109 |
=item $has_focus = $term->focus |
1110 |
|
1111 |
=item $is_mapped = $term->mapped |
1112 |
|
1113 |
=item $max_scrollback = $term->saveLines |
1114 |
|
1115 |
=item $nrow_plus_saveLines = $term->total_rows |
1116 |
|
1117 |
=item $lines_in_scrollback = $term->nsaved |
1118 |
|
1119 |
Return various integers describing terminal characteristics. |
1120 |
|
1121 |
=item $x_display = $term->display_id |
1122 |
|
1123 |
Return the DISPLAY used by rxvt-unicode. |
1124 |
|
1125 |
=item $lc_ctype = $term->locale |
1126 |
|
1127 |
Returns the LC_CTYPE category string used by this rxvt-unicode. |
1128 |
|
1129 |
=item $env = $term->env |
1130 |
|
1131 |
Returns a copy of the environment in effect for the terminal as a hashref |
1132 |
similar to C<\%ENV>. |
1133 |
|
1134 |
=cut |
1135 |
|
1136 |
sub env { |
1137 |
if (my $env = $_[0]->_env) { |
1138 |
+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env } |
1139 |
} else { |
1140 |
+{ %ENV } |
1141 |
} |
1142 |
} |
1143 |
|
1144 |
=item $modifiermask = $term->ModLevel3Mask |
1145 |
|
1146 |
=item $modifiermask = $term->ModMetaMask |
1147 |
|
1148 |
=item $modifiermask = $term->ModNumLockMask |
1149 |
|
1150 |
Return the modifier masks corresponding to the "ISO Level 3 Shift" (often |
1151 |
AltGr), the meta key (often Alt) and the num lock key, if applicable. |
1152 |
|
1153 |
=item $view_start = $term->view_start ([$newvalue]) |
1154 |
|
1155 |
Returns the negative row number of the topmost line. Minimum value is |
1156 |
C<0>, which displays the normal terminal contents. Larger values scroll |
1157 |
this many lines into the scrollback buffer. |
1158 |
|
1159 |
=item $term->want_refresh |
1160 |
|
1161 |
Requests a screen refresh. At the next opportunity, rxvt-unicode will |
1162 |
compare the on-screen display with its stored representation. If they |
1163 |
differ, it redraws the differences. |
1164 |
|
1165 |
Used after changing terminal contents to display them. |
1166 |
|
1167 |
=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) |
1168 |
|
1169 |
Returns the text of the entire row with number C<$row_number>. Row C<0> |
1170 |
is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost |
1171 |
terminal line. The scrollback buffer starts at line C<-1> and extends to |
1172 |
line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line |
1173 |
is requested. |
1174 |
|
1175 |
If C<$new_text> is specified, it will replace characters in the current |
1176 |
line, starting at column C<$start_col> (default C<0>), which is useful |
1177 |
to replace only parts of a line. The font index in the rendition will |
1178 |
automatically be updated. |
1179 |
|
1180 |
C<$text> is in a special encoding: tabs and wide characters that use more |
1181 |
than one cell when displayed are padded with urxvt::NOCHAR characters |
1182 |
(C<chr 65535>). Characters with combining characters and other characters |
1183 |
that do not fit into the normal tetx encoding will be replaced with |
1184 |
characters in the private use area. |
1185 |
|
1186 |
You have to obey this encoding when changing text. The advantage is |
1187 |
that C<substr> and similar functions work on screen cells and not on |
1188 |
characters. |
1189 |
|
1190 |
The methods C<< $term->special_encode >> and C<< $term->special_decode >> |
1191 |
can be used to convert normal strings into this encoding and vice versa. |
1192 |
|
1193 |
=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]]) |
1194 |
|
1195 |
Like C<< $term->ROW_t >>, but returns an arrayref with rendition |
1196 |
bitsets. Rendition bitsets contain information about colour, font, font |
1197 |
styles and similar information. See also C<< $term->ROW_t >>. |
1198 |
|
1199 |
When setting rendition, the font mask will be ignored. |
1200 |
|
1201 |
See the section on RENDITION, above. |
1202 |
|
1203 |
=item $length = $term->ROW_l ($row_number[, $new_length]) |
1204 |
|
1205 |
Returns the number of screen cells that are in use ("the line |
1206 |
length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the |
1207 |
line is joined with the following one. |
1208 |
|
1209 |
=item $bool = $term->is_longer ($row_number) |
1210 |
|
1211 |
Returns true if the row is part of a multiple-row logical "line" (i.e. |
1212 |
joined with the following row), which means all characters are in use |
1213 |
and it is continued on the next row (and possibly a continuation of the |
1214 |
previous row(s)). |
1215 |
|
1216 |
=item $line = $term->line ($row_number) |
1217 |
|
1218 |
Create and return a new C<urxvt::line> object that stores information |
1219 |
about the logical line that row C<$row_number> is part of. It supports the |
1220 |
following methods: |
1221 |
|
1222 |
=over 4 |
1223 |
|
1224 |
=item $text = $line->t ([$new_text]) |
1225 |
|
1226 |
Returns or replaces the full text of the line, similar to C<ROW_t> |
1227 |
|
1228 |
=item $rend = $line->r ([$new_rend]) |
1229 |
|
1230 |
Returns or replaces the full rendition array of the line, similar to C<ROW_r> |
1231 |
|
1232 |
=item $length = $line->l |
1233 |
|
1234 |
Returns the length of the line in cells, similar to C<ROW_l>. |
1235 |
|
1236 |
=item $rownum = $line->beg |
1237 |
|
1238 |
=item $rownum = $line->end |
1239 |
|
1240 |
Return the row number of the first/last row of the line, respectively. |
1241 |
|
1242 |
=item $offset = $line->offset_of ($row, $col) |
1243 |
|
1244 |
Returns the character offset of the given row|col pair within the logical |
1245 |
line. Works for rows outside the line, too, and returns corresponding |
1246 |
offsets outside the string. |
1247 |
|
1248 |
=item ($row, $col) = $line->coord_of ($offset) |
1249 |
|
1250 |
Translates a string offset into terminal coordinates again. |
1251 |
|
1252 |
=back |
1253 |
|
1254 |
=cut |
1255 |
|
1256 |
sub line { |
1257 |
my ($self, $row) = @_; |
1258 |
|
1259 |
my $maxrow = $self->nrow - 1; |
1260 |
|
1261 |
my ($beg, $end) = ($row, $row); |
1262 |
|
1263 |
--$beg while $self->ROW_is_longer ($beg - 1); |
1264 |
++$end while $self->ROW_is_longer ($end) && $end < $maxrow; |
1265 |
|
1266 |
bless { |
1267 |
term => $self, |
1268 |
beg => $beg, |
1269 |
end => $end, |
1270 |
ncol => $self->ncol, |
1271 |
len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), |
1272 |
}, urxvt::line:: |
1273 |
} |
1274 |
|
1275 |
sub urxvt::line::t { |
1276 |
my ($self) = @_; |
1277 |
|
1278 |
if (@_ > 1) |
1279 |
{ |
1280 |
$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) |
1281 |
for $self->{beg} .. $self->{end}; |
1282 |
} |
1283 |
|
1284 |
defined wantarray && |
1285 |
substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), |
1286 |
0, $self->{len} |
1287 |
} |
1288 |
|
1289 |
sub urxvt::line::r { |
1290 |
my ($self) = @_; |
1291 |
|
1292 |
if (@_ > 1) |
1293 |
{ |
1294 |
$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) |
1295 |
for $self->{beg} .. $self->{end}; |
1296 |
} |
1297 |
|
1298 |
if (defined wantarray) { |
1299 |
my $rend = [ |
1300 |
map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} |
1301 |
]; |
1302 |
$#$rend = $self->{len} - 1; |
1303 |
return $rend; |
1304 |
} |
1305 |
|
1306 |
() |
1307 |
} |
1308 |
|
1309 |
sub urxvt::line::beg { $_[0]{beg} } |
1310 |
sub urxvt::line::end { $_[0]{end} } |
1311 |
sub urxvt::line::l { $_[0]{len} } |
1312 |
|
1313 |
sub urxvt::line::offset_of { |
1314 |
my ($self, $row, $col) = @_; |
1315 |
|
1316 |
($row - $self->{beg}) * $self->{ncol} + $col |
1317 |
} |
1318 |
|
1319 |
sub urxvt::line::coord_of { |
1320 |
my ($self, $offset) = @_; |
1321 |
|
1322 |
use integer; |
1323 |
|
1324 |
( |
1325 |
$offset / $self->{ncol} + $self->{beg}, |
1326 |
$offset % $self->{ncol} |
1327 |
) |
1328 |
} |
1329 |
|
1330 |
=item $text = $term->special_encode $string |
1331 |
|
1332 |
Converts a perl string into the special encoding used by rxvt-unicode, |
1333 |
where one character corresponds to one screen cell. See |
1334 |
C<< $term->ROW_t >> for details. |
1335 |
|
1336 |
=item $string = $term->special_decode $text |
1337 |
|
1338 |
Converts rxvt-unicodes text reprsentation into a perl string. See |
1339 |
C<< $term->ROW_t >> for details. |
1340 |
|
1341 |
=item $success = $term->grab_button ($button, $modifiermask) |
1342 |
|
1343 |
Registers a synchronous button grab. See the XGrabButton manpage. |
1344 |
|
1345 |
=item $success = $term->grab ($eventtime[, $sync]) |
1346 |
|
1347 |
Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or |
1348 |
synchronous (C<$sync> is true). Also remembers the grab timestampe. |
1349 |
|
1350 |
=item $term->allow_events_async |
1351 |
|
1352 |
Calls XAllowEvents with AsyncBoth for the most recent grab. |
1353 |
|
1354 |
=item $term->allow_events_sync |
1355 |
|
1356 |
Calls XAllowEvents with SyncBoth for the most recent grab. |
1357 |
|
1358 |
=item $term->allow_events_replay |
1359 |
|
1360 |
Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most |
1361 |
recent grab. |
1362 |
|
1363 |
=item $term->ungrab |
1364 |
|
1365 |
Calls XUngrab for the most recent grab. Is called automatically on |
1366 |
evaluation errors, as it is better to lose the grab in the error case as |
1367 |
the session. |
1368 |
|
1369 |
=back |
1370 |
|
1371 |
=cut |
1372 |
|
1373 |
package urxvt::popup; |
1374 |
|
1375 |
=head2 The C<urxvt::popup> Class |
1376 |
|
1377 |
=over 4 |
1378 |
|
1379 |
=cut |
1380 |
|
1381 |
sub add_item { |
1382 |
my ($self, $item) = @_; |
1383 |
|
1384 |
$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal}; |
1385 |
$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover}; |
1386 |
$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active}; |
1387 |
|
1388 |
$item->{render} ||= sub { $_[0]{text} }; |
1389 |
|
1390 |
push @{ $self->{item} }, $item; |
1391 |
} |
1392 |
|
1393 |
=item $popup->add_title ($title) |
1394 |
|
1395 |
Adds a non-clickable title to the popup. |
1396 |
|
1397 |
=cut |
1398 |
|
1399 |
sub add_title { |
1400 |
my ($self, $title) = @_; |
1401 |
|
1402 |
$self->add_item ({ |
1403 |
rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" }, |
1404 |
text => $title, |
1405 |
activate => sub { }, |
1406 |
}); |
1407 |
} |
1408 |
|
1409 |
=item $popup->add_separator ([$sepchr]) |
1410 |
|
1411 |
Creates a separator, optionally using the character given as C<$sepchr>. |
1412 |
|
1413 |
=cut |
1414 |
|
1415 |
sub add_separator { |
1416 |
my ($self, $sep) = @_; |
1417 |
|
1418 |
$sep ||= "="; |
1419 |
|
1420 |
$self->add_item ({ |
1421 |
rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" }, |
1422 |
text => "", |
1423 |
render => sub { $sep x $self->{term}->ncol }, |
1424 |
activate => sub { }, |
1425 |
}); |
1426 |
} |
1427 |
|
1428 |
=item $popup->add_button ($text, $cb) |
1429 |
|
1430 |
Adds a clickable button to the popup. C<$cb> is called whenever it is |
1431 |
selected. |
1432 |
|
1433 |
=cut |
1434 |
|
1435 |
sub add_button { |
1436 |
my ($self, $text, $cb) = @_; |
1437 |
|
1438 |
$self->add_item ({ type => "button", text => $text, activate => $cb}); |
1439 |
} |
1440 |
|
1441 |
=item $popup->add_toggle ($text, $cb, $initial_value) |
1442 |
|
1443 |
Adds a toggle/checkbox item to the popup. Teh callback gets called |
1444 |
whenever it gets toggled, with a boolean indicating its value as its first |
1445 |
argument. |
1446 |
|
1447 |
=cut |
1448 |
|
1449 |
sub add_toggle { |
1450 |
my ($self, $text, $cb, $value) = @_; |
1451 |
|
1452 |
my $item; $item = { |
1453 |
type => "button", |
1454 |
text => " $text", |
1455 |
value => $value, |
1456 |
render => sub { ($_[0]{value} ? "* " : " ") . $text }, |
1457 |
activate => sub { $cb->($_[1]{value} = !$_[1]{value}); }, |
1458 |
}; |
1459 |
|
1460 |
$self->add_item ($item); |
1461 |
} |
1462 |
|
1463 |
=item $popup->show |
1464 |
|
1465 |
Displays the popup (which is initially hidden). |
1466 |
|
1467 |
=cut |
1468 |
|
1469 |
sub show { |
1470 |
my ($self) = @_; |
1471 |
|
1472 |
local $urxvt::popup::self = $self; |
1473 |
|
1474 |
my $env = $self->{term}->env; |
1475 |
# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. |
1476 |
delete $env->{LC_ALL}; |
1477 |
$env->{LC_CTYPE} = $self->{term}->locale; |
1478 |
|
1479 |
urxvt::term->new ($env, $self->{term}->resource ("name"), |
1480 |
"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, |
1481 |
"--transient-for" => $self->{term}->parent, |
1482 |
"-display" => $self->{term}->display_id, |
1483 |
"-pe" => "urxvt-popup") |
1484 |
or die "unable to create popup window\n"; |
1485 |
} |
1486 |
|
1487 |
sub DESTROY { |
1488 |
my ($self) = @_; |
1489 |
|
1490 |
delete $self->{term}{_destroy}{$self}; |
1491 |
$self->{term}->ungrab; |
1492 |
} |
1493 |
|
1494 |
=back |
1495 |
|
1496 |
=head2 The C<urxvt::timer> Class |
1497 |
|
1498 |
This class implements timer watchers/events. Time is represented as a |
1499 |
fractional number of seconds since the epoch. Example: |
1500 |
|
1501 |
$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); |
1502 |
$term->{timer} = urxvt::timer |
1503 |
->new |
1504 |
->interval (1) |
1505 |
->cb (sub { |
1506 |
$term->{overlay}->set (0, 0, |
1507 |
sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); |
1508 |
}); |
1509 |
|
1510 |
=over 4 |
1511 |
|
1512 |
=item $timer = new urxvt::timer |
1513 |
|
1514 |
Create a new timer object in started state. It is scheduled to fire |
1515 |
immediately. |
1516 |
|
1517 |
=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) |
1518 |
|
1519 |
Set the callback to be called when the timer triggers. |
1520 |
|
1521 |
=item $tstamp = $timer->at |
1522 |
|
1523 |
Return the time this watcher will fire next. |
1524 |
|
1525 |
=item $timer = $timer->set ($tstamp) |
1526 |
|
1527 |
Set the time the event is generated to $tstamp. |
1528 |
|
1529 |
=item $timer = $timer->interval ($interval) |
1530 |
|
1531 |
Normally (and when C<$interval> is C<0>), the timer will automatically |
1532 |
stop after it has fired once. If C<$interval> is non-zero, then the timer |
1533 |
is automatically rescheduled at the given intervals. |
1534 |
|
1535 |
=item $timer = $timer->start |
1536 |
|
1537 |
Start the timer. |
1538 |
|
1539 |
=item $timer = $timer->start ($tstamp) |
1540 |
|
1541 |
Set the event trigger time to C<$tstamp> and start the timer. |
1542 |
|
1543 |
=item $timer = $timer->stop |
1544 |
|
1545 |
Stop the timer. |
1546 |
|
1547 |
=back |
1548 |
|
1549 |
=head2 The C<urxvt::iow> Class |
1550 |
|
1551 |
This class implements io watchers/events. Example: |
1552 |
|
1553 |
$term->{socket} = ... |
1554 |
$term->{iow} = urxvt::iow |
1555 |
->new |
1556 |
->fd (fileno $term->{socket}) |
1557 |
->events (urxvt::EVENT_READ) |
1558 |
->start |
1559 |
->cb (sub { |
1560 |
my ($iow, $revents) = @_; |
1561 |
# $revents must be 1 here, no need to check |
1562 |
sysread $term->{socket}, my $buf, 8192 |
1563 |
or end-of-file; |
1564 |
}); |
1565 |
|
1566 |
|
1567 |
=over 4 |
1568 |
|
1569 |
=item $iow = new urxvt::iow |
1570 |
|
1571 |
Create a new io watcher object in stopped state. |
1572 |
|
1573 |
=item $iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... }) |
1574 |
|
1575 |
Set the callback to be called when io events are triggered. C<$reventmask> |
1576 |
is a bitset as described in the C<events> method. |
1577 |
|
1578 |
=item $iow = $iow->fd ($fd) |
1579 |
|
1580 |
Set the filedescriptor (not handle) to watch. |
1581 |
|
1582 |
=item $iow = $iow->events ($eventmask) |
1583 |
|
1584 |
Set the event mask to watch. The only allowed values are |
1585 |
C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed |
1586 |
together, or C<urxvt::EVENT_NONE>. |
1587 |
|
1588 |
=item $iow = $iow->start |
1589 |
|
1590 |
Start watching for requested events on the given handle. |
1591 |
|
1592 |
=item $iow = $iow->stop |
1593 |
|
1594 |
Stop watching for events on the given filehandle. |
1595 |
|
1596 |
=back |
1597 |
|
1598 |
=head1 ENVIRONMENT |
1599 |
|
1600 |
=head2 URXVT_PERL_VERBOSITY |
1601 |
|
1602 |
This variable controls the verbosity level of the perl extension. Higher |
1603 |
numbers indicate more verbose output. |
1604 |
|
1605 |
=over 4 |
1606 |
|
1607 |
=item == 0 - fatal messages |
1608 |
|
1609 |
=item >= 3 - script loading and management |
1610 |
|
1611 |
=item >=10 - all called hooks |
1612 |
|
1613 |
=item >=11 - hook reutrn values |
1614 |
|
1615 |
=back |
1616 |
|
1617 |
=head1 AUTHOR |
1618 |
|
1619 |
Marc Lehmann <pcg@goof.com> |
1620 |
http://software.schmorp.de/pkg/rxvt-unicode |
1621 |
|
1622 |
=cut |
1623 |
|
1624 |
1 |